Galaxy environment distribution (left) and Lagrangian bias function (right) of mass selected haloes (M_200b ∼ 4 × 10¹³ h⁻¹ M_⊙) at different damping scales (k_d = 0.07 h Mpc⁻¹, 0.15 h M⁻¹ and 0.4 h Mpc⁻¹ in top, center and bottom respectively). At all scales, the Gaussian bias provides a description that is as good as quadratic bias or significantly better – especially so at small smoothing scales.